![[texts]](/images/mediatype_texts.gif) | A field investigation of diffusion within a submerged plant canopy - Tarrell, Alvin E
Thesis (M.S. in Oceanographic Engineering)--Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution and (Master of Engineering in Civil and Environmental Engineering) Massachusetts Institute of Technology, Sept. 1997
Keywords: ECOSYSTEMS; WETLANDS
Downloads: 27 |  |
![[movies]](/images/mediatype_movies.gif) | "Why?" Files: Case Of The Prize Winning Plants - NASA
Everyone’s green thumb is put to the test as the tree house detectives attempt to grow award-winning pineapple plants for the upcoming state fair. The tree house becomes a greenhouse as the detectives experiment with soil, plant life cycles, light, CO2 and even genetics to grow the perfect plant. Follow along with Kali as she visits the beautiful islands of Hawaii to explore a rainforest, a pineapple plantation and a volcano where she learns about volcanic soil...
Keywords: NASA; ecosystems; biology
Downloads: 118 |  |
| What's in the News, Space #6: Spaceship Earth - NASA; Pennsylvania State Univ
(May 7, 1993) Episode #6 of What’s in the News, Science focuses on the earth’s ecosystems. This program is intended for grades 4-7. To license this film and get a higher quality version for broadcast/film purposes, contact A/V Geeks LLC.
Keywords: NASA; earth ecosystems
Downloads: 97 |  |
| BARK for Mt. Hood March 2007 Bark-About Hike: Roads and Salmon - Jim Lockhart
BARK Hike Leader: Alex Brown www.bark-out.org Welcome! "Bark is a grassroots organization based in Northwest Oregon that works to preserve the forests, waters and wildlife of Mt. Hood National Forest and surrounding regions." "We monitor logging and challenge destructive timber sales in the area and provide education and advocacy programs to bring attention to the vanishing legacy of our forests and wildlands." "The BARK email newsletter is sent out approximately twice a month, updating you on B...
Keywords: USFS; BLM; logging; forests; ecosystems
Downloads: 49 |  |
![[audio]](/images/mediatype_audio.gif) | Prof Chris Battershill at Cafe Scientifique Tauranga - Science Media Centre (NZ)
Prof Chris Battershill speaking at the Cafe Scientifique Tauranga on the biological impact of the Rena oil spill. Professor Chris Battershillis the Chair of Coastal Science at the University of Waikato. Audio courtesy of Dr Kathrin Otrel-Cass, Centre for Science & Technology Education Research (CSTER), University of Waikato.
Keywords: ecosystems; oil spill; rena; wildlife
Downloads: 8 |
| Energy and Matter in Ecosystems - Yale University, Stephen C. Stearns
Stephen C. Stearns, Principles of Evolution, Ecology and Behavior (Yale University: Open Yale Courses), http://oyc.yale.edu (Accessed November 11, 2010). License: Creative Commons BY-NC-SA 3.0. The original version can be found here
Keywords: Energy and Matter in Ecosystems
Downloads: 51 |  |
| Succession (Volume v.54 (1973))
Keywords: ecosystems modelling; resoration; ecological succession
Downloads: 26 |  |
| Yi-Tan Call 318: Personal Data Ecosystems - Jerry Michalski
You only need to read a couple of articles in the Wall Street Journal's What They Know About You series to imagine the pejorative term "stalker economy" might be closer to the truth than we like. "Consumers" leave a lively trail that others are avidly tracking. What should individuals do? Disconnect entirely? Go on the Do Not Track list for every site? What should companies do who would like to build respectful relationships with their customers and prospective customers? Kaliya Hamlin and Mary ...
Keywords: personal data; ecosystems; advertising; privacy; online
Downloads: 43 |
| Yi-Tan Call 318: Personal Data Ecosystems - summary - Jerry Michalski
You only need to read a couple of articles in the Wall Street Journal's What They Know About You series to imagine the pejorative term "stalker economy" might be closer to the truth than we like. "Consumers" leave a lively trail that others are avidly tracking. What should individuals do? Disconnect entirely? Go on the Do Not Track list for every site? What should companies do who would like to build respectful relationships with their customers and prospective customers? Kaliya Hamlin and Mary ...
Keywords: personal data; ecosystems; advertising; privacy; online
Downloads: 14 |
| Some problems in ecological physiology - Sisakian, N. M
Problems in space ecological physiology
Keywords: AEROSPACE MEDICINE; ECOSYSTEMS; PHYSIOLOGY; ECOLOGICAL SYSTEM; PHYSIOLOGY
Downloads: 41 |  |
| Recovering Comprehensive Health and the Harmony of the Ecosystems to Contain Bacterial Resistance to Antibiotics - Arturo Quizhpe, Mary Murray, Georgina Muñoz, Javier Peralta, Kléver Calle
Bacterial resistance to antibiotics or more commonly referred to as Antibiotic Resistance ABR) is a global health problem which occurs as much in low and middle income countries as in high income countries, as much in the hospital setting as in the community, with strong impacts in terms of mortality, morbidity and costs. The inappropriate use and abuse of antibiotics in human medicines and agriculture and aquaculture are the direct cause of antibiotic resistance...
Keywords: resistance; antibiotic; bacterial; health; ecosystems; comprehensive
Downloads: 48 |  |
| Seacoast Science Cafe: Forest Ecosystems and the Winds of Change: The History and Future of Forests as a Cog in the Earth System Nov 14 2012 - NH EPSCoR
Nov. 14: Forest Ecosystems and the Winds of Change: The History and Future of Forests as a Cog in the Earth SystemPresented by: Scott Ollinger
Keywords: Forest; Ecosystems; Forest Ecosystems; History of Forests; Future of Forests; Earth System
Downloads: 2 |
| BARK for Mt. Hood September 2008: Gordon Creek Mushroom Hike - Jim Lockhart
BARK for Mt. Hood September 2008: Gordon Creek Mushroom Hike BARK Hike leader: Mark DesMaret www.bark-out.org BARK Hike leader Mark DesMaret takes us on a hike through the fascinating world of edible mushroom hunting. The hikers walk through and discuss actions toward protecting the public national forests of the Gorden Creek Timber Sale. The Gordon Creek Timber Sale is proposed in public forests administered by the Bureau of Land Management (BLM)...
Keywords: usfs; blm; logging; ecology; ecosystems; watersheds; forests; old growth
Downloads: 36 |  |
| BARK for Mt. Hood June 2008 Hike: Medicinal Plants / Lng Pipeline Threat - Jim Lockhart
BARK for Mt. Hood Bark-About Hike June 2008: Wildflower and Medicinal Plants / LNG Pipeline Threat Welcome! Join us on our monthly Bark hike! Learn about the threats facing our ecosystems and what you can do to protect our National Forests. http://www.bark-out.org BARK for Mt. Hood download and podcast available at: http://barkformthood.blip.tv BARK Wildflower and Medicinal Plant hike leaders Candace Larson Missy Rohs June 8th, 2008 Hike leader Missy Rohs is co-founder of Arctos School of Herbal...
Keywords: usfs; blm; logging; ecology; ecosystems; watersheds; forests; old growth
Downloads: 117 |  |
| Assessment of Bulk Absorber Properties for Multi-Layer Perforates in Porous Honeycomb Liners - Jones, Michael G.
CONTINUING progress in materials technology provides potential for improved acoustic liners for attenuating broadband fan noise emissions from aircraft engine nacelles. Conventional liners (local-reacting perforate-over-honeycomb structures) provide significant narrow-band attenuation, but limited attenuation over wide bandwidths. Two approaches for increasing attenuation bandwidth are to (1) replace the honeycomb structure with bulk material, or (2) cascade multiple layers of perforate/honeycom...
Keywords: ALGORITHMS; GRAPHS (CHARTS); FORECASTING; PLANNING; DATA SYSTEMS; DOMAINS; ECOSYSTEMS
Downloads: 50 |  |
| Influence of chaining pinyon-juniper on watershed values in Utah : project report - Gifford, Gerald F
Cover title
Keywords: Pinyon-juniper ecosystems; Soil moisture; Water table; Watersheds
Downloads: 54 |  |
| Analysis of hypersonic pressure and heat transfer tests on Delta wings with laminar and turbulent boundary layers - Fitzsimmons, H. D.
No Abstract Available
Keywords: COASTAL ECOLOGY; ECOSYSTEMS; FLORIDA; ATLANTIC OCEAN; BOTANY; PLANTS (BOTANY)
Downloads: 80 |  |
| Failure mode and effect analysis airlock. Volume 1 - NON
No Abstract Available
Keywords: ECOLOGY; INVERTEBRATES; MARSHLANDS; VEGETATION GROWTH; BIOLOGY; ECOSYSTEMS; SALINITY
Downloads: 80 |  |
| Influence of chaining pinyon-juniper on watershed values in Utah : project report - Gifford, Gerald F
Cover title
Keywords: Pinyon-juniper ecosystems; Soil moisture; Water table; Watersheds
Downloads: 12 |  |
| Hypergolic propellants liquid and vapor disposal, phase 1 - Bowman, T. E.
No Abstract Available
Keywords: ATLANTIC OCEAN; COASTAL ECOLOGY; FLORIDA; BOTANY; ECOSYSTEMS; MARINE ENVIRONMENTS
Downloads: 71 |  |
| Proceedings of the Space Shuttle Sortie Workshop. Volume 2: Working group reports - NON
Details are presented on the mission planning progress in each of the working paper reports. The general topics covered are the following: space technology; materials processing and space manufacturing; communications and navigation; earth and ocean physics; oceanography; earth resources and surface environmental quality; meteorology and atmospheric environmental quality; life sciences; atmospheric and space physics; solar physics; high energy cosmic rays; X-ray and gamma ray astronomy; ultravio...
Keywords: ALASKA; ECOSYSTEMS; MAPPING; VEGETATION; EARTH RESOURCES PROGRAM; FIRES; IMAGERY; PHENOLOGY
Downloads: 108 |  |
| Science Media Centre online briefing - Innovation - learning from the Europeans - Science Media Centre (NZ)
A Science Media Centre briefing on Innovation in New Zealand and around the world. Briefing participants: Professor Helga Nowotny: President of the European Research Council and Professor emerita of Social Studies of Science, ETH Zurich (Swiss Federal Institute of Technology). Professor John Raine: Pro Vice-Chancellor, Innovation and Enterprise, AUT University and co-author of the report Powering Innovation...
Keywords: innovation; innovation ecosystems; patents; economic development; research and development
Downloads: 20 |
| Analysis of images obtained by the Phobos 2 spacecraft - Irvine, W. M
The reflection spectrum and density of the Martian satellite, Phobos, suggests that it may be a captured C-type asteroid and hence may contain relatively unaltered organic material from the early history of the solar system. Since there is evidence from isotopic anomalies that meteorites presumably derived from such asteroids contain preserved interstellar material, it is conceivable that evidence for interstellar matter might also be present on Phobos...
Keywords: ANTARCTIC REGIONS; ECOSYSTEMS; WATER; BIOLOGICAL EVOLUTION; ENVIRONMENT MODELS; EXOBIOLOGY; EXTINCTION; MARS (PLANET); MARS ENVIRONMENT; MICROORGANISMS; DETERIORATION
Downloads: 22 |  |
| Microbial communities and microprofiles of sulfide and oxygen of alum rock sulfur springs - Fischer, U
The microbial community of Alum Rock sulfur spring Site 3 was studied along one branch of the main stream and between the two branches, 150 cm distant from the source. The community at the source was dominated by green sulfur photosynthetic bacteria of the genus Chlorobium. At 15 cm to 35 cm from the source dominance in the community shifted to the genus Flexibacter at the surface of the mat and purple bacteria of the genus Chromatium underneath...
Keywords: BIOGEOCHEMISTRY; PRODUCTIVITY; THEMATIC MAPPING; CANOPIES (VEGETATION); CYCLES; ECOSYSTEMS; NITROGEN; REMOTE SENSING; SOILS; CORRELATION; INFRARED RADIATION
Downloads: 59 |  |
| CRZ Notification 1991-2006: Saga of Betrayal in Tamil Nadu and Pondicherry - Equitable Tourism Options (EQUATIONS)
This brief publication is a chronological compilation of the amendments and events related to the Coastal Regulation Zone Notification (CRZ) in the context of Tamil Nadu and Pondicherry and the analysis of its implications for the coastal areas. Contact: info@equitabletourism.org, +91.80.25457607 Visit: www.equitabletourism.org, www.equitabletourism.org/stage/readfull.php?AID=653
Keywords: Tamil Nadu; Pondicherry; Tourism; Ecosystems; India; Coastal Regulation Zone Notification; CRZ; Amendments; EQUATIONS
Downloads: 41 |  |
| Terrestrial production vs. extraterrestrial delivery of prebiotic organics to the early Earth - Chyba, C. F.
A comprehensive treatment of comet/asteroid interaction with the atmosphere, ensuring surface impact, and resulting organic pyrolysis is required to determine whether more than a negligible fraction of the organics in incident comets and asteroids actually survived collision with Earth. Results of such an investigation, using a smoothed particle hydrodynamic simulation of cometary and asteroidal impacts into both oceans and rock, demonstrate that organics will not survive impacts at velocities a...
Keywords: ECOSYSTEMS; WATER; EXTRATERRESTRIAL LIFE; HABITATS; MARS (PLANET); MARS SURFACE; MICROBIOLOGY; MICROORGANISMS; SURFACE PROPERTIES; VOLCANOES
Downloads: 24 |  |
| The biogeochemistry of microbial mats, stromatolites and the ancient biosphere - Desmarais, D. J.
Stromatolites offer an unparalleled geologic record of early life, because they constitute the oldest and most abundant recognizable remains of microbial ecosystems. Microbial mats are living homologs of stromatolites; thus, the physiology of the microbiota as well as the processes which create those features of mats (e.g., biomarker organic compounds, elemental and stable isotopic compositions) which are preserved in the ancient record...
Keywords: BIOLOGICAL EVOLUTION; ECOSYSTEMS; MOLECULAR BIOLOGY; PROKARYOTES; RADIATION EFFECTS; STERILIZATION; HEURISTIC METHODS; MODELS
Downloads: 34 |  |
| 7th GRADE EARTH SCIENCE & CHEMISTRY - Therese Forsythe
Keywords: atmosphere; ecology; earth-sciences; climate; earth science; earth's history; ecosystems; astronomy; human populations; general earth science
Downloads: 219 |  |
| Coupled Radiation Effects in Thermochemical Nonequilibrium Shock-Capturing Flowfield Calculations - Hartung, Lin C.
Lunar and Mars return conditions are examined using the LAURA flow field code and the LORAN radiation code to assess the effect of radiative coupling on axisymmetric thermochemical nonequilibrium flows. Coupling of the two codes is achieved iteratively. Special treatment required to couple radiation in a shock-capturing method is discussed. Results indicate that while coupling effects are generally the same as occur in equilibrium flows, under certain conditions radiation can modify the chemical...
Keywords: AQUATIC PLANTS; STRESS (PHYSIOLOGY); ETHYLENE COMPOUNDS; GLYCOLS; VISUAL OBSERVATION; ENVIRONMENT EFFECTS; PLANT PHYSIOLOGY; SPECTRAL REFLECTANCE; ECOSYSTEMS
Downloads: 53 |  |
| Interactions among sulfide-oxidizing bacteria - Poplawski, R
The responses of different phototrophic bacteria in a competitive experimental system are studied, one in which primary factors such as H2S or light limited photometabolism. Two different types of bacteria shared one limited source of sulfide under specific conditions of light. The selection of a purple and a green sulfur bacteria and the cyanobacterium was based on their physiological similarity and also on the fact that they occur together in microbial mats...
Keywords: CELLS (BIOLOGY); FOOD CHAIN; MICROORGANISMS; SYMBIOSIS; AMINO ACIDS; ARCHAEBACTERIA; ECOSYSTEMS; EVOLUTION (DEVELOPMENT); HABITS
Downloads: 60 |  |
| Tamil Nadu and Pondicherry: Coastal Area Assessment - A Post Tsunami Study on Coastal Conservation and Regulation - Equitable Tourism Options (EQUATIONS)
This study was undertaken in the context of the Tsunami of 26 December 2004 which was a grim reminder of the need to ensure the protection of coastal and island ecosystems and its people. The first section of this Study contextualises the impact of the Tsunami by describing the role and function of coastal and marine ecosystems in Tamil Nadu and Pondicherry and the impacts of human activities. Detailed information is provided on ecologically important areas such as the Gulf of Mannar, Pulicat La...
Keywords: Tamil Nadu; Pondicherry; Tourism; Ecosystems; Tsunami; India; Coastal Regulation Zone Notification; CRZ; Coastal Area Assessment; EQUATIONS
Downloads: 668 |  |
| ROCKET FLIGHT TO THE MOON - FROM IDEA TO REALITY - NEBEL, R
THE INVOLVEMENT OF RUDOLF NEBEL IN THE HISTORY OF AIRCRAFT AND ROCKET FLIGHTS IS REVIEWED.
Keywords: IDAHO; PHOTOMAPPING; SOIL MAPPING; VEGETATION; ANNUAL VARIATIONS; EARTH RESOURCES PROGRAM; ECOSYSTEMS
Downloads: 96 |  |
| Nonlinear Analysis of Airfoil High-Intensity Gust Response Using a High-Order Prefactored Compact Code - Crivellini, A.
The nonlinear response of symmetric and loaded airfoils to an impinging vortical gust is investigated in the parametric space of gust dimension, intensity, and frequency. The study, which was designed to investigate the validity limits for a linear analysis, is implemented by applying a nonlinear high-order prefactored compact code and comparing results with linear solutions from the GUST3D frequency-domain solver...
Keywords: BIOMASS BURNING; LEAVES; PLANTS (BOTANY); CLUSTER ANALYSIS; MULTIVARIATE STATISTICAL ANALYSIS; FIRES; ECOSYSTEMS
Downloads: 79 |  |
| Determining Aerodynamic Loads Based on Optical Deformation Measurements - Liu, Tianshu
This paper describes a videogram metric technique for determining aerodynamic loads based on optical elastic deformation measurements. The data reduction methods are developed to extract the normal force and pitching moment from beam deformation data. The axial force is obtained by measuring the axial translational motion of a movable shaft in a spring/bearing device. Proof-of-concept calibration experiments are conducted to assess the accuracy of this optical technique.
Keywords: HYDROLOGY; ECOSYSTEMS; ATMOSPHERIC PHYSICS; CARBON; WATER; DIGITAL DATA; TOPOGRAPHY; CONTOURS; APPLICATIONS PROGRAMS (COMPUTERS)
Downloads: 57 |  |
| Cultivate Powerdown Podcast Show- Episode 6- Biodiversity
The 6th in the Cultivate Centre series on Climate Change. This episode focuses on biodiversity, both in Ireland and internationally and features Dr. Mathew Jebb, Director of the Botanic Gardens in Dublin. It is a fascinating tour of the effects climate change is having and could have in the future on our flaura and fauna and how this will effect our society.
Keywords: Biodiversity; climate change; sustainable development; carbon dioxide; ecology; environment; ecosystems; plants; species; green
Downloads: 37 |
| Bahía de Luperón: apuntes ecológicos para la conservación de un Área Protegida - Liliana Betancourt Fernández y Alejandro Herrera Moreno
Physical and ecological information of Luperon Bay in Dominican Republic obtained during the environmental characterization as part of the Environmental Impact Study (EIA) of Marina Tropical Luperon Project, in 2002.
Keywords: Dominican Republic; Luperon Bay; geology; hydrology; botany; avifauna; herpetofauna; marine biota; ecosystems; Programa Ecomar
Downloads: 402 |  |
| Andamans: Coastal Area Assessment - A Post Tsunami Study on Coastal Conservation and Regulation - Equitable Tourism Options (EQUATIONS)
This study was undertaken in the context of the Tsunami of 26 December 2004 which was a grim reminder of the need to ensure the protection of coastal and island ecosystems and its people. The first section contextualises the impact of the tsunami by describing the role and function of coastal and marine ecosystems in the Andaman and Nicobar Islands. Section two addresses how ongoing and planned reconstruction, rehabilitation and development activities need to be managed and analyses legal and po...
Keywords: Andaman Nicobar Islands; Tourism; Ecosystems; Tsunami; India; Coastal Regulation Zone Notification; CRZ; Coastal Area Assessment; EQUATIONS
Downloads: 131 |  |
| CRZ Notification 1991-2006: Saga of Betrayal - Andaman and Nicobar Islands - Equitable Tourism Options (EQUATIONS)
This brief publication is a chronological compilation of the amendments and events related to the Coastal Regulation Zone Notification (CRZ) in the context of Andaman and Nicobar Islands and the analysis of its implications for the islands. Contact: info@equitabletourism.org, +91.80.25457607 Visit: www.equitabletourism.org, www.equitabletourism.org/stage/readfull.php?AID=652
Keywords: Andaman Nicobar Islands; Tourism; Ecosystems; India; Coastal Regulation Zone Notification; CRZ; Amendments; EQUATIONS
Downloads: 112 |  |
| SiC-Based Gas Sensors - Chen, Liang-Yu
Electronic grade Silicon Carbide (SiC) is a ceramic material which can operate as a semiconductor at temperatures above 600 C. Recently, SiC semiconductors have been used in Schottky diode gas sensor structures. These sensors have been shown to be functional at temperatures significantly above the normal operating range of Si-based devices. SiC sensor operation at these higher temperatures allows detection of gases such as hydrocarbons which are not detectable at lower temperatures...
Keywords: DATA ACQUISITION; DATA MANAGEMENT; DATA SYSTEMS; AIRCRAFT INSTRUMENTS; EARTH SCIENCES; ECOSYSTEMS; EDUCATION
Downloads: 53 |  |
| Sons of the blue planet - Lebedev, L.
A summary of the progress of the U.S.S.R. Space Program is presented for the years 1961-1972, with emphasis on bibliographic sketches of Soviet astronauts. Space flights are detailed, and astronaut training is discussed.
Keywords: EARTH RESOURCES; ECOSYSTEMS; REMOTE SENSORS; SATELLITE-BORNE PHOTOGRAPHY; CONFERENCES; INTERNATIONAL COOPERATION; PHOTOINTERPRETATION; PHOTOMAPPING
Downloads: 104 |  |
| PC-403: Pioneer Venus multiprobe spacecraft mission operational characteristics document, volume 3 - Barker, F. C
The Pioneer Venus spacecraft primary and backup operational modes and operational limitations for maneuvers, roll references transfer, attitude determination, spacecraft power discipline and spacecraft thermal discipline, are described. The functions and operations of the large and small probes, as well detailed performance in the normal operating modes and backup modes are presented.
Keywords: CHESAPEAKE BAY (US); CONFERENCES; ECOSYSTEMS; ESTUARIES; REMOTE SENSING; COASTAL ECOLOGY; ENVIRONMENTAL MONITORING; RESOURCES MANAGEMENT; WATER QUALITY
Downloads: 208 |  |
| Abundance anomalies of carbon and nitrogen in the IUE spectra of Algol-type interacting binaries - Mccluskey, Carolina P. S
There are two primary ways in which the products of nucleosynthesis in stellar interiors may appear at the surface of a star. These are mixing and/or loss of the original unburned stellar envelope. In interacting binaries, overflow can contribute dramatically to envelope loss. The simplest abundance anomalies to be expected from nuclear burning of hydrogen, helium, or carbon would be under or over abundances H, He, C, O, Ne, and Mg...
Keywords: CANOPIES (VEGETATION); MOISTURE; SPECTRAL BANDS; TARGETS; FORESTS; IMAGING SPECTROMETERS; SOLID STATE; TOPOGRAPHY; ALBEDO; CALIBRATING; ECOSYSTEMS; IMAGERY
Downloads: 48 |  |
| Modelling energy exchange processes in ecological systems - Rubin, A. B
Mathematical model of energy exchange processes in closed ecological systems
Keywords: CLOSED ECOLOGICAL SYSTEMS; ECOSYSTEMS; ENERGY TRANSFER; MATHEMATICAL MODELS; CLOSED ECOLOGICAL SYSTEM; ENERGY EXCHANGE; MATHEMATICAL MODEL
Downloads: 68 |  |
| Flow-Tagging Velocimetry for Hypersonic Flows Using Fluorescence of Nitric Oxide - Danehy, P. M.
We investigate a new type of flow-tagging velocimetry technique for hypersonic flows. The technique involves exciting a thin line of nitric oxide molecules with a laser beam and then, after some delay, acquiring an image of the displaced line. One component of velocity is determined from the time of flight. This method is applied to measure the velocity profile in a Mach 8.5 laminar, hypersonic boundary layer in the Australian National Universities T2 free-piston shock tunnel...
Keywords: ECOSYSTEMS; ATMOSPHERIC MODELS; REMOTE SENSING; MEASURING INSTRUMENTS; OPTICAL PROPERTIES; PARAMETERIZATION; BIOPHYSICS; CONIFERS; DATA ACQUISITION
Downloads: 76 |  |
| A NASA/University Joint Venture in Space Science (JOVE) - Malphrus, Benjamin K
The goal of this project has been to search for genuinely young irregular galaxies that have formed during gravitational encounters. The research has specifically involved high spatial resolution HI observations made using the VLA of NGC 5291, an interacting system consisting of a massive lenticular galaxy, companion galaxy and gaseous extensions. During the internship, data that had been collected by the mentor was calibrated, edited, reduced, and images of the HI distribution and kinematics pr...
Keywords: VEGETATION; CORES; ASSIMILATION; CARBON; GRADIENTS; ECOSYSTEMS; FEEDBACK; CLIMATE; TUNDRA; SOIL MOISTURE; PHYSICAL WORK; ORGANIC MATERIALS; DRAINAGE
Downloads: 79 |  |
| Numerical, Analytical, Experimental Study of Fluid Dynamic Forces in Seals - Artiles, Antoni
The objectives of the program were to develop computational fluid dynamics (CFD) codes and simpler industrial codes for analyzing and designing advanced seals for air-breathing and space propulsion engines. The CFD code SCISEAL is capable of producing full three-dimensional flow field information for a variety of cylindrical configurations. An implicit multidomain capability allow the division of complex flow domains to allow optimum use of computational cells...
Keywords: ECOSYSTEMS; BIOLOGICAL EVOLUTION; BIOGEOCHEMISTRY; TERRESTRIAL PLANETS; ECOLOGY; METABOLISM; MICROORGANISMS; MICROBIOLOGY; TRACE CONTAMINANTS; TRACE ELEMENTS
Downloads: 50 |  |
| A Wind Tunnel Model to Explore Unsteady Circulation Control for General Aviation Applications - Cagle, Christopher M.
Circulation Control airfoils have been demonstrated to provide substantial improvements in lift over conventional airfoils. The General Aviation Circular Control model is an attempt to address some of the concerns of this technique. The primary focus is to substantially reduce the amount of air mass flow by implementing unsteady flow. This paper describes a wind tunnel model that implements unsteady circulation control by pulsing internal pneumatic valves and details some preliminary results fro...
Keywords: ICE; PLANETARY GEOLOGY; MARS SURFACE; MARS ENVIRONMENT; EXOBIOLOGY; ANTARCTIC REGIONS; ECOSYSTEMS; MARS MISSIONS
Downloads: 55 |  |
| What is Space Weather A Workshop for Science Writers - Clauer, C. Rober
This project sponsored the organization and hosting of a workshop for science writers to learn about the physical nature and impact of space weather. Topics presented include: (1) What is Space Weather and why are we interested; (2) Space Weather forecasting: Who cares; (3) Geomagnetic storms and threats to the electric power systems; (4) Nowcasting to forecasting: Getting today's Space Weather today; and (5) Mining information related to Space Weather using the World Wide Web.
Keywords: WASTE WATER; HEAVY ELEMENTS; PHYTOTRONS; ACCUMULATIONS; WETLANDS; ECOSYSTEMS; COPPER; ZINC; WATER TREATMENT; RECYCLING; PLANTS (BOTANY); SEDIMENTS
Downloads: 110 |  |
| Aerodynamic roll damping of a T-tail transport configuration - Boyden, R. P
The aerodynamic roll damping and the yawing moment due to roll rate for a model of a T-tail transport with aft-mounted engines were measured by means of a small-amplitude forced-oscillation mechanism. The tests were made for Mach numbers between 0.21 and 0.80 over a range of angles of attack from about minus 4 deg to 22 deg. The basic configuration had positive damping in roll at low angles of attack with regions of low positive and negative damping for angles of attack above 8 deg to 10 deg...
Keywords: ANTHROPOLOGY; PATTERN RECOGNITION; BURKINA; COMMUNITIES; HABITATS; LAND USE; NIGER; EARTH RESOURCES PROGRAM; ECOSYSTEMS; MULTISPECTRAL PHOTOGRAPHY
Downloads: 70 |  |
| Short-term Aerosol Trends: Reality or Myth - Leptoukh, Gregory
The main questions addressed in this slide presentation involve short-term trends of MODIS aerosol optical thickness (AOT) over 6 years: (1) Why are the trends different in different regions (2) How are these trends so high (3) Why are they ''coherent'' in many areas (4) Are these changes in aerosol concentrations real, i.e., are they monotonic changes in emissions Several views of the Spatial Distribution of AOT from Terra are shown...
Keywords: ALGAE; BIOLUMINESCENCE; IMAGING TECHNIQUES; REMOTE SENSING; PUBLIC HEALTH; ECOSYSTEMS; SECURITY; DECISION SUPPORT SYSTEMS; ECONOMY
Downloads: 57 |  |
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